Hostname: page-component-848d4c4894-mwx4w Total loading time: 0 Render date: 2024-06-26T17:10:48.864Z Has data issue: false hasContentIssue false
  • English
  • Français

I.—Morphological Studies on the Echinoidea Holeotypoida and their Allies

Published online by Cambridge University Press:  01 May 2009

Herbert L. Hawkins M.Sc., F.G.S.
Herbert L. Hawkins M.Sc., F.G.S.
Affiliation:
Lecturer in Geology, University College, Reading.
Get access Rights & Permissions [Opens in a new window]

Extract

Since 1824, when Charles Stokes transmitted to the Geological Society a drawing of the “buccal plates” of Conulus, the question of the existence and characters of the lantern in that genus has been intermittently, but inconclusively, debated. The course of this discussion may be briefly outlined here.

Type
Original Articles
Information
Geological Magazine , Volume 4 , Issue 10 , October 1917 , pp. 433 - 441
Copyright
Copyright © Cambridge University Press 1917

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 The same remark applies to the periproctal plates described by North, F. J. (Ann. Mag. Nat. Hist., December, 1915).Google Scholar His specimen is obviously a species of that Upper Chalk Caratomid genus variously called Echinoconus (Desor, fid. Lambert), Pironaster (Schlueter), or Conulopsis (Hawkins). Anyhow, the horizon from which it was collected, and all the particulars published about it, show clearly that it is not a Discoides.